CBN-F314L Hydraulic Gear Pump 14 cc 20 MPa

Product Overview

The CBN-F314L is a 14 cm³/rev fixed-displacement external gear pump used primarily in tractor and agricultural hydraulic systems.

Available technical documentation identifies the CBN-F314L with a 14 mL/rev displacement and a 20 MPa F-class pressure level. Public supplier specifications for the CBN-F314L configuration also list 2,000–2,500 rpm operating speeds and tractor applications. However, these supplier specifications should not be treated as universal for every CBN-F314L variant.

Official agricultural-machinery records provide additional application evidence: CBN-F314L is directly identified as the implement hydraulic pump on several tractor models, including ME454-related equipment. Different tractors using this pump have different hydraulic relief-valve settings, confirming that pump ratings and machine-system settings must be evaluated separately.

The complete customer-specified code is CBN-F314L-TFHR. The exact meaning of the TFHR suffix could not be verified from an OEM technical document, so it is not assigned an unverified shaft, port or rotation definition.

For replacement applications, we match the original displacement, rotation, shaft, flange, port arrangement and installation dimensions and perform 100% simulated working-condition testing before shipment.

Technical Specifications

CBN-F314L

• Model: CBN-F314L
• Full Customer-Specified Code: CBN-F314L-TFHR
• Pump Type: Fixed-displacement external gear pump
• Working Displacement: 14 cm³/rev
• Pressure Class: 20 MPa, F specification
• Publicly Listed Speed Range: 2,000–2,500 rpm for a published CBN-F314L configuration
• Rotation: Left-hand configuration is documented for the CBN-F314LXL variant; the rotation of every CBN-F314L version should be verified from the complete ordering code.
• Theoretical Flow: 14 L/min per 1,000 rpm
• Theoretical Flow at 2,000 rpm: approximately 28 L/min
• Theoretical Flow at 2,500 rpm: approximately 35 L/min
• Control Method: Fixed displacement
• Typical Application: Tractor and agricultural hydraulic systems
• Publicly Listed Shaft Example: 4-spline configuration
• Publicly Listed Port Example: Side inlet with bottom/rear outlet
• Weight: No sufficiently reliable OEM-confirmed value found; no estimated figure is presented.
• Peak Pressure: No dedicated OEM-confirmed peak pressure for the complete CBN-F314L-TFHR was found; no unverified value is presented.

The publicly available CBN documentation distinguishes E and F pressure classes, with E at 16 MPa and F at 20 MPa.

Theoretical Flow Analysis

The theoretical displacement flow is:

Qₜ = Vg × n / 1000

For 14 cm³/rev:

• 1,000 rpm: 14 L/min
• 1,500 rpm: 21 L/min
• 2,000 rpm: 28 L/min
• 2,500 rpm: 35 L/min
• 3,000 rpm: 42 L/min

These figures represent theoretical displacement flow. Actual flow depends on volumetric efficiency, pressure, viscosity, temperature and suction conditions.

Key Technical Advantages

1. Stable 14 cm³/rev Fixed Displacement

The CBN-F314L provides a 14 cm³/rev fixed displacement suitable for tractor implement circuits, three-point hitch systems and auxiliary hydraulic functions.

2. F-Class 20 MPa Pressure Capability

The F configuration corresponds to the higher pressure class in the published CBN technical documentation. This makes CBN-F314L more suitable for higher-pressure applications than the corresponding E314 configuration.

3. Compact External Gear Architecture

The external gear design provides a mechanically straightforward architecture with relatively simple maintenance and replacement procedures, making it practical for mobile agricultural equipment.

4. Documented Tractor Application

Government and agricultural-machinery technical records directly identify CBN-F314L as the implement hydraulic pump on multiple tractor models.

5. Replacement-Oriented Configuration

For aftermarket replacement, the CBN-F314L can be matched according to displacement, rotation, shaft design, flange geometry and port arrangement instead of replacing the complete hydraulic circuit.

6. Multiple Mechanical Interface Variants

Public CBN-F314L data shows configurations with left rotation, side inlet, bottom/rear outlet and 4-spline shafts. Because variants exist, the complete ordering code must be verified before installation.

Application Areas

Typical applications include:

• Agricultural tractors
• Utility tractors
• Three-point hitch systems
• Tractor implement hydraulics
• Auxiliary tractor hydraulic circuits
• Agricultural machinery
• Light mobile hydraulic equipment

Published application information associates the CBN-F314L with several agricultural tractor platforms, while official agricultural inspection records confirm its use as an implement hydraulic pump.

Expert Maintenance Tips

1. Confirm Rotation Before Installation

Gear-pump rotation determines the internal suction and discharge arrangement. Do not assume rotation solely from the basic CBN-F314L designation. Verify the complete code and the shaft-end viewing direction.

2. Match the Drive Shaft

Different CBN-F314L configurations may use different shaft arrangements. A 4-spline version is publicly documented, so spline count, shaft diameter, shaft length and drive interface should be checked before ordering.

3. Verify Port Location

Published CBN-F314L configurations include side inlet and bottom/rear outlet arrangements. Even with the same displacement, an incorrect port orientation can prevent direct installation.

4. Separate Pump Pressure from System Relief Pressure

Tractors using CBN-F314L can have different relief-valve settings. Therefore, 18–19.5 MPa values found in tractor documentation should not be treated as the pump’s universal rated pressure.

5. Protect the Suction Circuit

A restricted suction filter, undersized suction line, low reservoir level or high cold-oil viscosity can cause cavitation and abnormal pump noise. Avoid high-load start-up after prolonged machine storage.

6. Verify the Complete Code Before Replacement

For CBN-F314L-TFHR, the most important unresolved issue is the exact meaning of the TFHR suffix. Since an OEM coding document confirming this suffix was not found, replacement orders should be verified using the original nameplate, shaft photographs, flange dimensions and port configuration rather than relying only on the base model name.